Seen in an OVN-Kubernetes OCP environment with:

[root@ci-ln-c0wrhf2-72292-wthl9-worker-c-zz7fx ~]# rpm -qa | grep ovn
ovn24.09-24.09.0-beta.31.el9fdp.x86_64
ovn24.09-central-24.09.0-beta.31.el9fdp.x86_64
ovn24.09-host-24.09.0-beta.31.el9fdp.x86_64
ovn24.09-vtep-24.09.0-beta.31.el9fdp.x86_64

BT:

2024-10-28T16:58:47.273Z|04439|backtrace|ERR|lib/vlog.c:1297 backtrace:
ovn-controller(+0x1324f7) [0x562450c2a4f7]
ovn-controller(+0xf8143) [0x562450bf0143]
ovn-controller(+0xf829b) [0x562450bf029b]
ovn-controller(+0x13443a) [0x562450c2c43a]
ovn-controller(+0x83653) [0x562450b7b653]
ovn-controller(+0x28d41) [0x562450b20d41]
/lib64/libc.so.6(+0x29590) [0x7fc3b8fb3590]
/lib64/libc.so.6(__libc_start_main+0x80) [0x7fc3b8fb3640]
ovn-controller(+0x2a0a5) [0x562450b220a5]
ovn-controller: lib/ovsdb-idl.c:3596: assertion row->new_datum != NULL failed in ovsdb_idl_txn_write__()

There was no coredump produced from this assertion failure. The crash was only seen on one node. All nodes were printing:

2024-10-28T16:58:44.087Z|04437|pinctrl|WARN|Invalid IPv6 prefixes: 
2024-10-28T16:58:44.283Z|04438|pinctrl|WARN|Invalid IPv6 prefixes:

due to a bug in OVN-Kubernetes:

https://github.com/ovn-org/ovn-kubernetes/pull/4810

Not sure if the log is related at all, but thought I would include that info . Will attach DBs, and full log.